octeon_ep: support asynchronous notifications

Add asynchronous notification support to the control mailbox.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
index cef4bc3..465eef2 100644 (file)
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c
@@ -271,6 +271,33 @@ static void process_mbox_resp(struct octep_device *oct,
        }
 }
 
+static int process_mbox_notify(struct octep_device *oct,
+                              struct octep_ctrl_mbox_msg *msg)
+{
+       struct net_device *netdev = oct->netdev;
+       struct octep_ctrl_net_f2h_req *req;
+
+       req = (struct octep_ctrl_net_f2h_req *)msg->sg_list[0].msg;
+       switch (req->hdr.s.cmd) {
+       case OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS:
+               if (netif_running(netdev)) {
+                       if (req->link.state) {
+                               dev_info(&oct->pdev->dev, "netif_carrier_on\n");
+                               netif_carrier_on(netdev);
+                       } else {
+                               dev_info(&oct->pdev->dev, "netif_carrier_off\n");
+                               netif_carrier_off(netdev);
+                       }
+               }
+               break;
+       default:
+               pr_info("Unknown mbox req : %u\n", req->hdr.s.cmd);
+               break;
+       }
+
+       return 0;
+}
+
 void octep_ctrl_net_recv_fw_messages(struct octep_device *oct)
 {
        static u16 msg_sz = sizeof(union octep_ctrl_net_max_data);
@@ -291,6 +318,8 @@ void octep_ctrl_net_recv_fw_messages(struct octep_device *oct)
 
                if (msg.hdr.s.flags & OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP)
                        process_mbox_resp(oct, &msg);
+               else if (msg.hdr.s.flags & OCTEP_CTRL_MBOX_MSG_HDR_FLAG_NOTIFY)
+                       process_mbox_notify(oct, &msg);
        }
 }